Multi-mode Base Station and Method for Data Transmission

1. A radio equipment controller (REC) for a base station supporting multiple radio access technology, the REC comprising: a processor configured to determine, according to a slot ID or radio access technology information received from a link formed by the REC, a radio equipment (RE) and a peer REC, that a first radio access technology supported by the REC is different from a second radio access technology supported by the peer REC, and determine that the link is in a dual-star link mode according to a hop number received from the link; a transmitter configured to transmit a downlink data corresponding to the first radio access technology supported by the REC to a first port of the RE, and send Layer 1 (L1) information to the RE, wherein the L1 information includes indication indicating the dual-star link mode; and a receiver configured to receive a first uplink data corresponding to the first radio access technology from the first port of the RE.

2. The REC according to claim 1 , wherein processor is configured to report, when the determined dual-star link mode is different from a preconfigured link mode, an alarm indicating that the link is in abnormal mode.

3. The REC according to claim 1 , wherein the transmitter is configured to send first L1 information including a slot ID of the REC, and broadcast a first high-level data link control (HDLC) link setup message comprising a slot ID of the REC and indication information about the first radio access technology to enable the RE to determine, according to the slot ID in the first L1 information and the slot ID in the HDLC link setup message, that the first port of the RE supports the first radio access technology.

4. The REC according to claim 1 , wherein the transmitter is configured to send a third L1 information including a slot ID of the first REC and information about the first radio access technology to enable the RE to determine, according to the third L1 information, that the first port of the RE supports the first radio access technology.

5. The REC according to claim 1 , wherein the first radio access technology comprises at least one of a global system for mobile communications (GSM), a universal mobile telecommunications system (UMTS), a code division multiple access (CDMA), a worldwide interoperability for microwave access (WIMAX), and a long term evolution (LTE), and the second radio access technology is any one or combination of the GSM, the UMTS, the CDMA, the WIMAX and the LTE.

6. A method for data transmission in a base station supporting multiple radio access technologies, the method comprising: determining, by a radio equipment controller (REC), that a first radio access technology is different from a second radio access technology supported by a peer REC according to a slot ID or radio access technology information received from a link formed by the REC, a radio equipment (RE) and the peer REC; determining, by the REC, that the link is in a dual-star link mode according to a received hop number; and sending, by the REC, Layer 1 (L1) information to the RE, the L1 information including indication information indicating the dual-star link; transmitting, by the REC a downlink data corresponding to the first radio access technology supported by the REC to a first port of the RE; and receiving, by the REC, a first uplink data corresponding to the first radio access technology from the RE.

7. The method of claim 6 , comprising: reporting, by the REC, an alarm indicating that the link is in abnormal mode when the determined dual-star link mode is different from a preconfigured link mode.

8. The method according to claim 6 , comprising: sending, by the REC, first L1 information carrying a slot ID of the REC and broadcasting, by the REC, a high-level data link control (HDLC) link setup message including a slot ID of the REC and indication information indicating the first radio access technology, to enable the RE to determine that the first port of the RE supports the first radio access technology according to the slot ID in the first L1 information and the slot ID in the HDLC link setup message.

9. The method according to claim 6 , comprising: sending, by the REC, third L1 information including a slot ID of the REC and information about the first radio access to enable the RE to determine, according to the third L1 information, that the first port supports the first radio technology.

10. The method according to claim 6 , wherein the first radio access technology comprises at least one of a global system for mobile communications (GSM), a universal mobile telecommunications system (UMTS), a code division multiple access (CDMA), worldwide interoperability for microwave access (WIMAX), and a long term evolution (LTE), and the second radio access technology is any one or combination of the GSM, the UMTS, the CDMA, the WIMAX and the LTE.